Massage device



Nov. 30 1926.

J. H. PINKSTON MASSAGE DEVICE Filed June 6 1924 n w n aWD/EL([HIPin/isfon,

Patented Nov. 30, 1926.

JAMES H. PINKSTON. SAfPULPAv OKLAHOMA.

MASS AGE nEvIoE.

Application filed June 6,

My invention relates to a massage machine.

An important object of the invention is to provide a'machine of theabove mentioned character, having means for subjecting a portion of thebody to the simultaneous action of suction and massaging.

A further object ofthe invention is to proi'ide a machine of the abovementioned character. which is self-contained. simple in construction,and convenient in use.

Other objects and advantages of the invention will be apparent duringthe course of the following description.

In the accompanying drawings forming a part of this specification, andin which like numerals are employed to designate like parts throughoutthe same.

Figure 1 is a central vertical longitudinal section through a massagemachine embodying my invention, i Figure 2 is a side elevation ofthe-same, and,

Figure 3 is an enlarged detail section taken on line 3-3 of Figure 1.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of my invention, the numeral 5 designates a casing,as a whole, preferably formed in longitudinal casing sections 6 and 7,which may be united at their adjacent edges, as shown at 8. The casingor housing 5 may preferably be formed of aluminum, although any othersuitable material may be employed. Suitably attached to the rear end ofthe casing or housing 5 is a handle 9, preferably formedof wood or anyother suitable material.

ll/founted-within the rear end of the cas- Current is supplied to themotor through a cable 12, extending through a longitudinal opening 13,in the handle 9. The motor 10 embodies the usual armature carried-by anarmature shaft 14, and this armature shaft is journaled in bearings-15,16, 17 and 18,

preferably formed of bronze. The bearings and 18 are carried in the endsof the casing sections 6 and 7. The numerals 19 and 20 designatelubricating ports. The casing sections 6 and 7 are provided withpartition sections 21 and 22, which when assembled, form a closedpartition, covering port 24.

1924. Serial No. 718,320.

ing the motor chamber 23. The bearing 16 is held within an opeuingformed in these partition sections 21 and'22 and the partition section22 is equipped with a lubricat- The casing section 5 is provided in itsforward portion with a transverse partition 28, arranged opposite theinner end 24 of a diagonal web 25, providing an air suction or vacuumpassage 26,

and a depending mouth 27. "lhe partition 23 has a lubricatin wort 28'.as shown.

lhe partition 23 and the partition sections 21 and 22 provide a fan orvacuum chamber 28. which is circular 11'] cross section and la .chargethe air through the ports 29 at the periphery of the fan casing whilethe inlet passage 26 leads into the fan chamber near the centerof thefan. This fan is the ordinary centrifugal fan, and is of course drivenat a high speed by the armature shaft 14.

The web 25 has an opening for receiving a bearing 31, preferably formedof bronze, and this bearing receives the upper end of a vertical.massageshaft 32. Above the web 25, the shaft'32 carries a beveled gear33, rigidly mounted thereon, engaging a smaller beveled gear 34, rigidlymounted upon the armature shaft 14.

At its lower end, the massage shaft 32 carries a stop element 35, suchas'a nut screwed thereon, and'this stop element serves to limit thedownward movement of a carriage .36, preferably formed of metal. Thiscarriage,

Figure 3, is provided with a central opening 37, and has inwardlyprojecting lugs or ribs 38, slidable within longitudinalgrooves 39,formed. in the massage shaft ,32. The carriage is therefore free to-moveup and down upon the massage shaft but positively rotates therewith. Asuitably light compressible coil spring '40, surrounds the massage shaft32, and engages the bearing 31 at Its upper end, and rests within arecess 41, at its lower end, which recess is formed within the carriage36. The numeral 42 designates a massage element, which is suitablyyielding or flexible, and is preferably in theformof a hollow rubberball, which is held upon the carriage 36. Thisrubber ball has a smallopening 43 formed in its top, and may be applied to the carriage bystretching the same over thelower end thereof, but will clamp within thegroove 44, and thereby rotate with the massage shaft.

' The numeral ,45 designates a vacuum cup, preferably formed of rubber;and receiving therein the massage element or ball 42, which isconcentric with relation to the same, and spaced therefrom. The vacuumcup 45 is l suitably secured to the lower end of the lip 27.

In the use of the machine, the same is held by the handle 9,and thevacuum cup is applied to the body, at a desired point, and may beshifted over the same; The portion being treated, is simultaneouslyacted upon by a the same, and that various changes in the shape, size,and-arrangement of parts'may be resorted to, without departing from thespirit of my invention, or the scope of the subjoined claims. Havingthus described my invention, I claim:

1. In a machine of the character described, a handle, a casing securedto the forward end of the handle and embodying a forward gear chamberand ,a fan chamber arranged at the rear of the gear chamber, a cupconnected with the forward portion of the casin and in communicationwith the fan chain er, a transverse shaft leading into the forward gearchamber, a massage element mounted upon the transverse shaft torotatetherewith and movable longitudinally thereof, said massage elementbeing located withinsaid cup, a spring surrounding the transverse shaftto force the massage element outwardly, a bevel gear mounted upon theinner end of the transverse shaft and located within the forward gearchamber, a longitudinal shaft extending into the forward gear chamber, abevel gear mounted upon the longitudinal shaft and in permanent meshwith the first named bevel gear, a rotary fan within the fan chamber andmounted upon the longitudinal shaft, and means to drive the longitudinalshaft.

2: In a machine of the character described,

a handle, a casing secured to the forward end of the handle inend-to-end relation, said casing embodying a rear motor chamber, anintermediate fan I chamber and a forward gear chamber, a cup connectedwith the for-' forward gear'chamber and connected with the transverseshaft, 1 motor within the rear motor chamber and having an armatureshaft extending longitudinally through the casing and through the fanchamber and.

gear chamber, a bevel gear carried by the armature shaft and permanentlyengaging the first named bevel gear, and the rotary fan within the fanchamber and mountedupon the armature shaft.

In testimony whereof I aflix my signature.

JAMES H. PINKSTON.

